The answer is a tephra cone.

Here's why:

* Tephra: Tephra is the general term for any solid material ejected from a volcano during an eruption, including ash, cinders, and volcanic bombs.

* Tephra Cone: These volcanoes are built up entirely from layers of tephra that accumulate around the vent. They are often smaller and less steep than other volcano types.

Example: The Parícutin volcano in Mexico is a well-known example of a tephra cone.